Tutors Answer Your Questions about logarithm (FREE)
Question 82169: The following log problem [log (base 7) (argument =7)= y ]can be "solved with a generalization": y = 1 when the base and the argument are the same number.
Is there are generalization that can be used to solve a log problem like
[9 log (base 9) (arguement = 54) = y] ??
Click here to see answer by stanbon(57984)  |
Question 82436: Could someone please help me with this?
Rewrite as a single logarithm:
alog x-blog y-clog z.
first space between g & x on problem there is a little 3 but my computer will not allow the function. It sets a little below the letters. It is the same number (3) between g & Y, and g & Z.
Click here to see answer by Earlsdon(6294) |
Question 82436: Could someone please help me with this?
Rewrite as a single logarithm:
alog x-blog y-clog z.
first space between g & x on problem there is a little 3 but my computer will not allow the function. It sets a little below the letters. It is the same number (3) between g & Y, and g & Z.
Click here to see answer by scott8148(6628)  |
Question 82560: HELP:
Is my professor unreasonable or am I totally confused? I answered the other 6 questions, I think I have (math)brain freeze at this point, can you please solve these? He tried and I simply could not understand.
1)Using the index of a sequence as the domain and the value of the sequence as the range, is a sequence a function?
Include the following in your answer:
Which one of the basic functions (linear, quadratic, rational, or exponential) is related to the arithmetic sequence?
Which one of the basic functions (linear, quadratic, rational, or exponential) is related to the geometric sequence?
Give at least two real-life examples of a sequences or series. One example should be arithmetic, and the second should be geometric. Explain how these examples would affect you personally.
5) Logarithms:
a) Using a calculator, find log 10000 where log means log to the base of 10.
Answer:
b) Most calculators have 2 different logs on them: log, which is based 10, and ln, which is based e. In computer science, digital computers are based on the binary numbering system which means that there are only 2 numbers available to the computer, 0 and 1. When a computer scientist needs a logarithm, he/she uses a log to the base 2. To find the log of a number to any base, we can use a conversion formula as shown here:
Using this formula, find . Round your answer to the hundredth's place.
Answer:
Show work in this space
This is not from a textbook as far as I know, this is from a written assignment list.
Click here to see answer by stanbon(57984) |
Question 83004: The loudness of sound is based on intensity level measured in decibels using a logarithmic scale and is relative to (a ratio of) the weakest sound the ear can hear.
I need the formula for measuring sound and pick a specific sound (a jet's sound when taking off) give the decibels of the sound, and explain what this measurement means.
Click here to see answer by ankor@dixie-net.com(15747)  |
Question 83466: I am having problems doing this portion of my assignment. Could you please help?
Research how sound is measured. Include the following items in your posting:
The formula for measuring sound.
Pick a specific sound, give the decibels of the sound, and explain what this measurement means.
Click here to see answer by stanbon(57984) |
Question 83648: Hopefully - this is my last question! I'm a little confused on this one, probably because it is a word problem.
The equation P(a) = 14.7e^-0.21a, where a is the altitude above sea level measured in miles yields the atmospheric pressure in pounds per square inch. if the atmospheric pressure is apporximately 11.35 pounds per square inch, find that altitude avoe sea level. Express to the nearest hundred feet.
Click here to see answer by scott8148(6628) |
Question 83738: For a certain strain of bacteria, the number of bacteria present after t hours is given by the equation: Q = Q(0)e^0.42t where Q(0) represents the initial number of bacteria. How long will it take 700 bacteria to increase to 7,000 bacteria? Express to the nearest tenth.
Click here to see answer by lekelly(20) |
Question 85269: -I'm kind of stumped on this one. I know that I need to use newton law of cooling, but when I do it dosnt seem to work out right.-
The hotel Bora-Bora is having a pig roast. At noon, the chef puts the pig in a large earthen oven. The pig's original temperature is 75 degrees F. At 2:00 PM the chef checked the pigs temperature and was upset because it had reached only 100 degrees F. If the oven's temperature remains a constant 325 degrees F, at what time may the hotel serve its guests, assuming that pork is done when it reaches 175 degrees F?
Click here to see answer by stanbon(57984) |
Question 85350: Hello! I would like to check my solution.
Mandy will require $11,000 in 2 years to return to college to get an MBA degree. How much money should she ask her parents for now so that, if she invests it at 9% compounded continously, will she have enough for school? Round to the nearest dollar.
Thank you
Click here to see answer by ankor@dixie-net.com(15747) |
Question 85492: Could you please help me with these problems?
1. assume variables are positive and multiply
y^6/9 ( y^-6/9 + 4y ^3/9)
2. Assume x, y, z are positive #'s use properties of logarithms to write expression log
7 sqrt x^6 y ^8 / z^7
3. Find value of x: logx 121/9 = 2
4. simplify (256 x^4 y) 1/4 / (81xy^3) 3/4
Click here to see answer by stanbon(57984) |
Question 85509: Hi, could you please help me with these problems?
1. Evaluate log3 (3^8)
2. Find value of x: log3(81) =x
3. Write equation (1/3)^-6 = 729 in logarithic form
4. Assume x is positive number and use logarithm expression
log (x + 3) - logx
(is the answer log x+3/ x?)
Thank you for helping me with these!!!!
Click here to see answer by stanbon(57984) |
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